研究論文
珪化カルシウムを添加せる可鍛鋳鉄について
1960 年 32 巻 4 号 p. 261-267
詳細
1960 年 32 巻 4 号 p. 261-267
It has been reported that, by effect of calcium, stability of cementite in steel or cast iron reduced and a remarkable graphitization took place. This effect of calcium was again studied from the aspect of malleable cast iron, in this report.
The results obtained were as follows:
(1) By the treatment with calcium silicide, the first stage graphitization and the second stage ones were remarkably promoted and, with same amount of silicon, these rates were several times as big as the ones of plain cast iron.
(2) Cast Iron treated with calcium silicide could graphitize even in silicon content under 0.5%.
(3) It was, however, hard for molten iron treated with calcium silicide to solidify in state of white cast iron in sand mold.
